Petetts



(No Model.) 3 Sheets-Sheet 1 S. Z. DE PERRANTI.

.ELEGTRO LOOOMOTIVE ENGINE.

No. 402,311. Patented Apr. 30, 1889.

(No Model.) 3 SheetsSheet 2 S. Z. DE PER RANTI.

ELBCTRO LOGOMOTIVE ENGINE.

No. 402,311. Patented Apr. 30, 1889.

(No Model.) "3 Sheets- 'Sheet 3. S. Z DE PERRANTL ELEGTRO LOGOMOTIVB ENGINE.

No. 402,311. Patented Apr. 30,1889.

Hllllllll Ill H1 III III mun:

II II III ll ll Illllll III III HI llI' ll Ill llllllulllllli Illllll I" III I Ill"!IllllllIlllllllllllllllllllllllllllllllll Nv FEYERS. Pham-umo n hu. Walhinglon. D. Q

UNITED STATES PATENT OFFICE.

SEBASTIAN ZIANI DE FERRANTI, OF IIAMPSTEAD, COUNTY OF MIDDLESEX, ENGLAND.

ELECTRO LOCOMOTlVE-ENGINE.

SPECIFICATION forming part of Letters Patent No. 402,311, dated April 30, 1889.

Application filed September 24, 1888. Serial No. 286,204. (No'modeh) Patented in England September 13, 1887, N0. ,4 9

Ml Irhrmz/ it mm/ 7 con/00771,:

Be it known that I, SEBASTIAN ZIANI DE FERRANTI, electrician, a subject of the Queen of Great Britain, residing at 120 Fellows Road, IIampstead, in the county of Middle sex, England, have invented certain new and useful Improvements in Electro Locomotive- Engines, of which the following is a specification.

Letters Patent have been granted to Inc upon this invention in Great Britain No. 12,419, of September 13, 1887.

In the construction of electro locomotive-engines Iplace the armature of the electromotorengine between a pair of driving-wheels with its axis aligned with the axle or axles of the wheels, and I couple them together by couplings which allow a certain amount of move ment of one out of line with the other. Dia grain drawings of examples of electro locomotive-engines so formed are shown in the drawings annexed.

Figure 1 is an elevation, partly in section, showing one form. of my invention. Fig. 2 is a detail of the same. Fig. 3 shows a llIOCllfi" cation, and Figs. 4: and 5 another niodification.

In the construction shown at Fig. l, A. is the lower part of the frame or a locomotive or carriage. B is the framin g of an electroinotor rigidly fixed thereto. 0 C are the driving-wheels, each provided with a short axle, D. E E are springs interposed between the frame F, which carries the bearings for these short axles and the body of the carriage. G is the armature of the electroinotor. II II are radial arms on the ends of the armatureaxis carrying crank-pins, which, as shown at Fig. 2, are coupled by links I to crank-pins J on other arms, K, fixed to the short axles.

In some cases I form the axis of the armature hollow and support it at its ends in roller-bearings. The axle of the driving-wheels I pass through the axis of the armature, so that it has suflicient play within it, and, as before, Iconnect the axle with the axis of the armature by flexible couplings.

A transverse section. of an clcctromotor driving a pair of driving-wheels in the above manner is shown at Fig. 3. In this figure the axle of the driving wheels is shown to be driven through coiled springs K from the hollow axis of the armature; but the wheels may be driven in other ways from the arma tureas, for example, by links in the man ner shown at Fi 1,01 by other well-known means for transmitting a revolving motion from one shaft to another, where the shafts do not always remain concentric one with the other.

When an alternating current is used for working the engines, a synchronizing commutator running independently may be used to make the current continuous and so capable of driving the motor-engine; but if a continuous current is supplied to them from the line-conduotor no contrivance of this kind is required.

In Figs. at and 5 I have shown the motor as being formed with an ordinary drunrarmature, G, mounted on bearinga'ollers g, and with fixed magnets acting upon opposite sides of it, as in ordinary dynamo-machin cs, for producing continuous current.

For the purpose of magnetizing the holdmagnets of the motors on the locomotive, I may employ a source or energy carried on the locomotive- --tor instance, storage-batteries.

Having now particularly described and as certained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is- 1. The combination, with the frame and drivingwhecls of an electric locomotive-em gine, of a dynamo-electric machine placed between the driving-wheels of the locomotive, with its armature concentric with the axle or axles of the wheels, and flexing couplings between the axle and armature which allow the frame of the locomotive and the dynamo which it carries to play up and down freely.

2. In an electric locomotive, the combination, substantially as set forth, with the wheels and axle oraxles,'of a dynamo-electric machine having its armature arranged c011- ccntrically with. the axle or axles and flexing couplings by which the armature drives the whereby the armature may play independzo latter, whereby the armature may independently of the axle;

ently vibrate or play up and down. 1 1 3. In an electric locomotive, the combina- SEBASTIAN ZIAM DE PERRMTI' 5 tion, substantially as set forth, of the driv- \Vitnesses: ing-Wheels and axles, a dynamo-electric ina- J NO. H. VVHITEHEAD, J

chine having a hollow armature through 24 Southampton Buildings, London. which the axle passes, and flexing couplings WALTER J. SKERTEN, by which the armature drives the axle, 17 Gmcechm'ch Street, London, E. C. 

